PPB to PPM conversion


How to convert PPB to PPM:

1ppm = 1/106 = 10-6

1ppb = 1/109 = 10-9

So

1ppm = 1000ppb

The number of parts-per-million xppm is equal to the number of parts-per billion xppb divided by 1000:

xppm = xppb / 1000


Example:

7000ppb is equal to 7ppm:

x(ppm) = 7000ppb / 1000 = 7ppm


PPB to PPM conversion table

PPB PPM
1 0.001
10 0.01
100 0.1
1000 1
1000010
100000100
10000001000

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